magazines like American Builder, House & Home, Practical Builder, Better Homes & Gardens and House Beautiful. Starting in the late twentieth century, many traditional homes, townhomes and high-rise condominiums were constructed (or converted) for residents wishing to live in the downtown and inner-loop area, spurred by a focused revitalization effort after years of suburban exodus. These emerging urban dwellings can be found in an eclectic array of styles. The Commerce Towers, originally developed as an office building in 1928 by Houston businessman Jesse H. Jones, has been converted into condominiums. In addition, many old office buildings and warehouses surrounding downtown have been recently converted to lofts. The Humble Towers Lofts, built in 1921, was originally the headquarters for Humble Oil. The Beaconsfield Lofts are registered with the US Interior Department's National Register of Historic Places. In the late 1990s and early 2000s decade, there was a mini-boom of mid-rise and high-rise residential tower construction, with several over 30 stories tall. Since 2000 more than 30 high-rise buildings have gone up in Houston; all told, 72 high-rises tower over the city, which adds up to about 8,300 units. Public facilities City and county government The Houston City Hall building, constructed in 1938-1939, is an example of Works Progress Administration architecture. The simply designed structure featured many construction details that have helped to make this building an architectural classic. The design on the lobby floor depicts the protective role of government. The doors feature historical figures including Thomas Jefferson, Julius Caesar, and Moses. Above the lobby entrance is a stone sculpture depicting two men taming a wild horse. The sculpture meant to symbolize a community coming together to form a government to tame the world around them. The plaster cast for this sculpture, and twenty-seven casts for friezes around the building, were done by Beaumont artist Herring Coe and co-designer Raoul Jassett. The George R. Brown Convention Center was opened on September 26, 1987 on the east side of downtown Houston. The sleek 100 foot (30 m) high red-white-and-blue building replaced the obsolete Albert Thomas Convention Center, which was later redeveloped into the Bayou Place entertainment complex in the downtown Houston Theater District. The George R. Brown contains nearly a half-million square feet of exhibit space, 41 meeting rooms, a 3,600-seat theater area and a 31,000 square foot (2,900 m²) grand ballroom. The new Harris County Civil Courthouse, which was completed in